TY - GEN
T1 - Prospects for quantitative CT imaging in the presence of foreign metal bodies using statistical image reconstruction
AU - Williamson, J. F.
AU - Whiting, B. R.
AU - Benac, J.
AU - Murphy, R. J.
AU - Blaine, G. J.
AU - O'Sullivan, J. A.
AU - Politte, D. G.
AU - Snyder, D. L.
N1 - Publisher Copyright:
© 2002 IEEE.
PY - 2002
Y1 - 2002
N2 - Radiation Oncology treatment planning presents several challenges to CT imaging, including imaging in the presence of complex metal intracavitary applicators and the need to noninvasively measure photon cross sections. Using synthetic sinograms in which noise, a polyenergetic spectrum, and scatter are modeled, the performance of three algorithms is compared: filtered back projection, deterministic iterative deblurring, and a modem modelbased stochastic iterative reconstruction technique. The model-based algorithm performs well, but requires knowledge of metal object locations and shapes to fully eliminate streaking artifacts.
AB - Radiation Oncology treatment planning presents several challenges to CT imaging, including imaging in the presence of complex metal intracavitary applicators and the need to noninvasively measure photon cross sections. Using synthetic sinograms in which noise, a polyenergetic spectrum, and scatter are modeled, the performance of three algorithms is compared: filtered back projection, deterministic iterative deblurring, and a modem modelbased stochastic iterative reconstruction technique. The model-based algorithm performs well, but requires knowledge of metal object locations and shapes to fully eliminate streaking artifacts.
UR - http://www.scopus.com/inward/record.url?scp=84948694802&partnerID=8YFLogxK
U2 - 10.1109/ISBI.2002.1029341
DO - 10.1109/ISBI.2002.1029341
M3 - Conference contribution
AN - SCOPUS:84948694802
T3 - Proceedings - International Symposium on Biomedical Imaging
SP - 649
EP - 652
BT - 2002 IEEE International Symposium on Biomedical Imaging, ISBI 2002 - Proceedings
PB - IEEE Computer Society
T2 - IEEE International Symposium on Biomedical Imaging, ISBI 2002
Y2 - 7 July 2002 through 10 July 2002
ER -